Boston Dynamics has made multiple robots for DARPA. If they make a really great platform, I expect they're probably gonna be weaponized at some point. Maybe not by them, but...
I remember a buddy of mine who was working on an autonomous, self-mapping rover research project at his university on a DARPA project. He was just working on the navigation side, part of a larger project. He was telling me how he had a "huh" moment when they got the first control unit and it had a big red button on it labelled "weapon".
Chocolate, or more so cocoa, is highly flammable. If it catches fire, the blaze is difficult to extinguish since cocoa powder contains 10 to 20 per cent fat and has a huge surface area. Yes, chocolate is flammable. Most solid foods possess at least some level of flammability because they are organic, and chocolate is no exception.
See, I don't see how one would have known that without having actually experimented and set a chocolate bar on fire, though.
Butane torches are frequently employed as kitchen gadgets to caramelize sugar in cooking, such as when making crème brûlée. They may be marketed as kitchen torches, cooking torches, or culinary torches. Use of the butane torch in the kitchen is not limited to caramelizing sugar; it can be used to melt or brown toppings on casseroles or soups, to melt cheese, and to roast or char vegetables such as peppers.
Have you considered a regular dog that doesn't shoot flames? Our non-flamethrowing dog does a very good job taking care of the rabbits she can't chase away.